157333820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1721}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 378399168

約数和(自身を除く): 221065348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 653, 1306, 1721, 2612, 3265, 3442, 4571, 6530, 6884, 8605, 9142, 12047, 13060, 17210, 18284, 22855, 24094, 34420, 45710, 48188, 60235, 91420, 120470, 240940, 1123813, 2247626, 4495252, 5619065, 7866691, 11238130, 15733382, 22476260, 31466764, 39333455, 78666910, 157333820]

約数ペア:

[(1, 157333820), (2, 78666910), (4, 39333455), (5, 31466764), (7, 22476260), (10, 15733382), (14, 11238130), (20, 7866691), (28, 5619065), (35, 4495252), (70, 2247626), (140, 1123813), (653, 240940), (1306, 120470), (1721, 91420), (2612, 60235), (3265, 48188), (3442, 45710), (4571, 34420), (6530, 24094), (6884, 22855), (8605, 18284), (9142, 17210), (12047, 13060)]